City of Union, MO Adoption of Building Codes

Delete number 1.

Delete number 2.

Electrical.

Repairs and maintenance.

(a)

Change to read as follows: "Minor repair work, including the replacement of lamps or the connection of approved portable electrical equipment to approved permanently installed receptacles as long as the existing branch circuit is not lengthened or added on to."

[A] 105.5 Expiration.

Replace "one hundred eighty (180) days" with "three hundred sixty-five (365) days."

[A] 109.6 Refunds.

Delete Section.

[A] 113.1 General.

Replace "Board of Appeals" with "Board of Adjustment."

[A] 113.3 Qualifications.

Change to read as follows: "The Board of Appeals shall comprise the Board of Adjustment as specified in Sections 400.050 through 400.130 of the City of Union Code of Ordinances."

[A] 115.1 Authority.

Change to read as follows: "Upon notice from the Code Official, work performed contrary to the provisions of this code or in a dangerous or unsafe manner shall immediately cease. Such notice shall be in writing and shall be given to the owner of the property, or to the owner's agent, or to the person doing the work. The notice shall state the conditions under which work is authorized to resume. Where an emergency exists, the Code Official shall not be required to give a written notice prior to stopping the work. Any person who shall continue any work in or about the structure after having been served with a stop work order, except such work as the person is directed to perform to remove a violation or unsafe condition, shall be guilty of an ordinance violation punishable by a fine of not more than five hundred dollars ($500.00)."

406.2.4 Floor surfaces.

Delete exceptions.

406.3.2.1 Dwelling unit separation.

Modify as follows:

The private garage shall be separated from the dwelling unit and its attic area by means of Type X gypsum board, not less than five-eighths (5/8) inch (12.7 mm) in thickness, applied to the garage side.

[F] 906.1 Where required.

Add the following groups to number 1:

R-3 and U.

[F] 907.2.4 Group F.

Delete exception.

[F] 907.2.6.1 Group I-1.

Delete exception number 1.

15.

[F] 907.2.6.3.3 Automatic smoke detection system.

Delete exceptions.

16.

[F] 907.2.8.2 Automatic smoke detection system.

Delete exception.

17.

[F] 907.2.18.1 Smoke detectors.

Number 4 - replace "five thousand (5,000) cfm" with "two thousand (2,000) cfm."

18.

[F] 915.1.3 Fuel burning, forced-air furnaces.

Delete exception.

19.

[F] 915.1.4 Fuel-burning appliances outside of dwelling units, sleeping units and classrooms.

Delete exception numbers 1 and 2.

20.

1004.9 Posting of occupant load.

Add the following: Use Group E.

21.

1013.1 Where required.

Delete exception number 2.

22.

1013.3 Illumination.

Delete exception.

23.

1015.4 Opening limitations.

Modify as follows:

Exceptions 1 and 6.

(a)

Change four and three-eighths (4 3/8) inches to four (4) inches.

24.

1804.5 Grading and fill in flood hazard areas.

Delete Section.

Refer to Chapter 415 (Flood Damage Prevention) City of Union Code of Ordinances.

25.

1805.2 Dampproofing.

Delete the following sentence: "Wood foundation systems shall be constructed in accordance with AWC PWF."

26.

1807.1.4 Permanent wood foundation systems.

Delete Section.

27.

1807.1.6.2 Concrete foundation walls.

Add the following sentence: "Design of all concrete foundation walls shall be performed by a design professional."

28.

Table 1807.1.6.2 Concrete foundation walls.

Delete Table.

29.

1809.4 Depth and width of footings.

Delete the following sentence: "The minimum width of footings shall be twelve (12) inches (305 mm)."

30.

Table 1809.7 Prescriptive footings supporting walls of light-frame construction.

Delete Table.

Add the following Table:

Minimum Width and Thickness for Concrete Footings (soil bearing 1,500 to 4,000 psf)
Number of floors supported by the footing	Width of Footing (inches)	Thickness of Footing (inches)
1	20	8
2	20	8
3	24	10
Reinforcing steel: Two (2) number 4 rebar continuous

31.

1809.8 Plain concrete footings.

Delete Section.

32.

1809.12 Timber footings.

Delete Section.

33.

1810.3.2.4 Timber.

Delete Section.

34.

1906 Footings for light-frame construction.

Delete Section.

35.

[P] 2901.1 Scope.

Delete the following sentence: "Private sewage disposal systems shall conform to the International Private Sewage Disposal Code."

36.

Chapter 32 Encroachments into the public right-of-way.

Remove Chapter.

37.

Appendices A through O.

Delete all Appendices, excluding Appendix E (Supplementary Accessibility Requirements).

Section 500.030 Adoption of Electrical Code.

[R.O. 2012 §500.030; CC 1992 §5-4; Ord. No. 1723 §2, 5-12-1986; Ord. No. 1941 §2, 6-11-1990; Ord. No. 2133 §2, 1-10-1994; Ord. No. 2403 §5, 11-10-1997; Ord. No. 2702 §§1 — 2, 1-14-2002; Ord. No. 3595 §§1 — 2, 10-11-2010; Ord. No. 4629, 11-13-2023]

A certain document, one (1) copy of which is on file in the office of the City Engineer of the City of Union, being marked and designated as the 2020 NFPA 70, National Electric Code (NEC), be it hereby adopted as the Electrical Code of the City of Union, Missouri, for the control of building and structures as herein provided; and each and all of the regulations, provisions, penalties, conditions and terms of said Electrical Code are hereby referred to, adopted and made a part hereof, as if fully set out in this Section, with the additions, insertions, deletions and changes, if any, prescribed in Section 500.035 of this Chapter.

Section 500.035 Additions, Insertions, Deletions and Changes.

[R.O. 2012 §500.035; Ord. No. 2702 §2, 1-14-2002; Ord. No. 3595 §§1 — 2, 10-11-2010; Ord. No. 4629, 11-13-2023]

The following Sections of the 2020 NFPA 70, National Electric Code (NEC) are hereby revised as follows:

210.11 Garage branch circuits.

Add the following sentence: "Garage door opener receptacles located in the ceiling and dedicated appliance receptacles shall be a simplex."

210.12 Arc-fault circuit-interrupter protection.

Delete Section.

210.52(B)(1) Receptacle outlets served.

Delete exception 2.

Add the following exception: "A receptacle for a built-in microwave or refrigeration appliance shall be supplied from an individual branch circuit rated twenty (20) amperes."

210.52(G)(3) Basements.

Add the following sentence: "Sump pump receptacle shall be a simplex."

230.70(A)(1) Readily accessible locations.

Add the following sentence: "Maximum of five (5) feet from nearest point of entry."

334.15(B) Protection from physical damage.

Add the following sentence: "All cables and wires exiting at the panel box location shall be protected, and covered, by an approved finish."

406.4(D)(4) Arc-fault circuit interrupter protection.

Delete Section.

406.9(A) Damp locations.

Delete the following statement: "(attachment plug cap not inserted and receptacle covers closed)."

406.9(B)(1) Receptacles of fifteen (15) and twenty (20) amperes in a wet location.

Delete the following statement: "whether or not the attachment plug cap is inserted."

422.5 GFCI protection for personnel.

Delete (6) Sump pumps.

Delete (7) Dishwashers.

Section 500.040 Adoption of Plumbing Code.

[R.O. 2012 §500.040; CC 1992 §5-6; Ord. No. 1723 §4, 5-12-1986; Ord. No. 1941 §4, 6-11-1990; Ord. No. 2133 §4, 1-10-1994; Ord. No. 2403 §7, 11-10-1997; Ord. No. 2703 §§1 — 2, 1-14-2002; Ord. No. 3600 §§1 — 2, 10-11-2010; Ord. No. 4634, 11-13-2023]

A certain document, one (1) copy of which is on file in the office of the City Engineer of the City of Union, being marked and designated as the International Plumbing Code, 2021 Edition, as published by the International Code Council Inc., be it hereby adopted as the Plumbing Code of the City of Union, Missouri, for the control of building and structures as herein provided; and each and all of the regulations, provisions, penalties, conditions and terms of said Plumbing Code are hereby referred to, adopted and made a part hereof, as if fully set out in this Section, with the additions, insertions, deletions and changes, if any, prescribed in Section 500.045 of this Chapter.

Section 500.045 Additions, Insertions, Deletions and Changes.

[R.O. 2012 §500.045; Ord. No. 2703 §2, 1-14-2002; Ord. No. 3600 §§1 — 2, 10-11-2010; Ord. No. 4634, 11-13-2023]

The following Sections of the International Plumbing Code, 2021 Edition, are hereby revised as follows:

[A] 101.1 Title.

Replace "[INSERT NAME OF DEPARTMENT]" with "the City of Union, Missouri."

[A] 106.5.3 Expiration.

Replace all instances of "one hundred eighty (180) days" with "three hundred sixty-five (365) days."

[A] 109.2 Schedule of permit fees.

Add the following sentence: "Permit fees shall be as specified in Section 500.100 of the City of Union Code of Ordinances."

[A] 109.5 Refunds.

Delete Section.

[A] 113.1 General.

Replace "Board of Appeals" with "Board of Adjustment."

[A] 113.3 Qualifications.

Change to read as follows: "The Board of Appeals shall comprise the Board of Adjustment as specified in Sections 400.050 through 400.130 of the City of Union Code of Ordinances."

114 Board of Appeals.

Delete Section.

[A] 115.4 Violation; penalties.

Change to read as follows: "Any person violating any of the provisions of this Chapter or any of the codes adopted in this Chapter shall be deemed guilty of an ordinance violation and upon conviction thereof shall be fined in an amount not exceeding five hundred dollars ($500.00) or be imprisoned in the City or County Jail for a period of not exceeding ninety (90) days, or both fine and imprisonment. Each day such violation is committed or permitted to continue shall constitute a separate offense and shall be punishable as such hereunder."

[A] 116.1 Authority.

305.4.1 Sewer depth.

Change to read as follows: "Building sewers shall be installed not less than thirty (30) inches (76 cm) below finished grade."

312.1 Required tests.

Delete the following statement: "for piping systems other than plastic."

312.5 Water supply system test.

Change "50 psi" to "80 psi."

421.3 Shower waste outlet.

Change "1-1/2 inches" to "2 inches."

502.6 Prohibited location (new).

Add the following sentence: "Gas-fired water heaters shall not be installed in a sleeping room, bathroom, or a closet accessed through a sleeping room or bathroom."

15.

602.3 Individual water supply.

Delete Section.

16.

603.2 Separation of water service and building sewer.

Change to read as follows: "Water service pipe and the building sewer shall be horizontally separated by not less than five (5) feet (1,524 mm) of undisturbed or compacted earth. The required separation distance shall not apply where a water service pipe crosses a sewer pipe, provided that the water service is sleeved to a point not less than five (5) feet (1,524 mm) horizontally from the sewer pipe centerline on both sides of such crossing. The sleeve shall be of pipe materials listed in Table 605.3, 702.2 or 702.3. The required separation distance shall not apply where the bottom of the water service pipe, located within five (5) feet (1,524 mm) of the sewer, is not less than twelve (12) inches (305 mm) above the highest point of the top of the building sewer and the pipe materials conform to Table 702.3."

17.

Table 605.3 Water service pipe.

Delete Table.

See Chapter 700 of the City of Union Code of Ordinances.

18.

Table 605.4 Water distribution pipe.

Delete the following materials:

Chlorinated polyvinyl chloride/aluminum/chlorinated polyvinyl chloride (CPVC/AL/CPVC).

Cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX) pipe.

Cross-linked polyethylene/aluminum/high-density polyethylene (PEX-AL-HDPE).

Galvanized steel pipe.

Polyethylene/aluminum/polyethylene (PE-AL-PE) composite pipe.

Polyethylene of raised temperature (PE-RT) plastic tubing.

Polypropylene (PP) plastic pipe or tubing.

19.

Table 605.5 Pipe fittings.

Delete the following materials:

Acrylonitrile butadiene styrene (ABS) plastic.

Cross-linked polyethylene/aluminum/high-density polyethylene (PEX-AL-HDPE).

Fittings for polyethylene of raised temperature (PE-RT) plastic tubing.

Insert fittings for polyethylene/aluminum/polyethylene (PE-AL-PE) and cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX).

Metal (brass) insert fittings for polyethylene/aluminum/polyethylene (PE-AL-PE) and cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX).

Polypropylene (PP) plastic pipe or tubing.

Polyvinyl chloride (PVC) plastic.

(8)

Steel.

20.

Table 605.7 Valves.

Delete the following materials:

Polypropylene (PP) plastic.

Polyvinyl chloride (PVC) plastic.

21.

Table 702.1 Above-ground drainage and vent pipe.

Delete the following materials:

Acrylonitrile butadiene styrene (ABS) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a solid, cellular core or composite wall.

Polyolefin pipe.

Polyvinyl chloride (PVC) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a cellular core or composite wall.

Polyvinyl chloride (PVC) plastic pipe with a 3.25-inch O.D. and a cellular core or composite wall.

22.

Table 702.2 Underground building drainage and vent pipe.

Delete the following materials:

Acrylonitrile butadiene styrene (ABS) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a solid, cellular core or composite wall.

Polyolefin pipe.

Polyvinyl chloride (PVC) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a cellular core or composite wall.

Polyvinyl chloride (PVC) plastic pipe with a 3.25-inch O.D. and a cellular core or composite wall.

23.

702.3 Building sewer pipe.

Delete Section.

See Chapter 700 of the City of Union Code of Ordinances.

24.

Table 702.4 Pipe fittings.

Delete the following materials:

Acrylonitrile butadiene styrene (ABS) plastic pipe in IPS diameters.

Acrylonitrile butadiene styrene (ABS) plastic pipe in sewer and drain diameters.

Polyolefin.

Vitrified clay.

25.

903.1.1 Roof extension unprotected.

Replace "[Number] inches (mm)" with "twelve (12) inches (305 mm)."

26.

918.1 General.

Add the following sentence: "Where approved by the Building Official."

27.

1113.1.5 Discharge piping (new).

Add the following sentence: "Sump pump piping shall discharge to the exterior of the building only and no closer than ten (10) feet from the property line. There shall be no direct discharge of sump pumps to the sanitary and storm sewer systems."

28.

Chapter 13 Non-potable water systems.

Delete Chapter.

29.

Chapter 14 Subsurface graywater soil absorption systems.

Delete Chapter.

30.

Appendices A through F.

Delete Appendices.

Section 500.050 Adoption of Mechanical Code.

[R.O. 2012 §500.050; CC 1992 §5-7; Ord. No. 2403 §10, 11-10-1997; Ord. No. 2704 §§1 — 2, 1-14-2002; Ord. No. 3601 §§1 — 2, 10-11-2010; Ord. No. 4633, 11-13-2023]

A certain document, one (1) copy of which is on file in the office of the City Engineer of the City of Union, being marked and designated as the International Mechanical Code, 2021 Edition, as published by the International Code Council Inc., be it hereby adopted as the Mechanical Code of the City of Union, Missouri, for the control of building and structures as herein provided; and each and all of the regulations, provisions, penalties, conditions and terms of said Mechanical Code are hereby referred to, adopted and made a part hereof, as if fully set out in this Section, with the additions, insertions, deletions and changes, if any, prescribed in Section 500.051 of this Chapter.

Section 500.051 Additions, Insertions, Deletions and Changes.

[R.O. 2012 §500.051; Ord. No. 2704 §2, 1-14-2002; Ord. No. 3601 §§1 — 2, 10-11-2010; Ord. No. 4633, 11-13-2023]

The following Sections of the International Mechanical Code, 2021 Edition, are hereby revised as follows:

[A] 101.1 Title.

Replace "[NAME OF JURISDICTION]" with "the City of Union, Missouri."

[A] 103.1 Creation of agency.

Replace "[INSERT NAME OF DEPARTMENT]" with "Building Department."

[A] 106.4.3 Expiration.

Replace all instances of "one hundred eighty (180) days" with "three hundred sixty-five (365) days."

[A] 109.6 Fee refunds.

Delete Section.

[A] 113.1 General.

Replace "Board of Appeals" with "Board of Adjustment."

[A] 113.3 Qualifications.

Change to read as follows: "The Board of Appeals shall comprise the Board of Adjustment as specified in Sections 400.050 through 400.130 of the City of Union Code of Ordinances."

114 Board of Appeals.

Delete Section.

[A] 115.4 Violation; penalties.

[A] 116.1 Authority.

Change to read as follows: "Upon notice from the Code Official, work on any plumbing system that is being done contrary to the provisions of this code or in a dangerous or unsafe manner shall immediately cease. Such notice shall be in writing and shall be given to the owner of the property, or to the owner's agent, or to the person doing the work. The notice shall state the conditions under which work is authorized to resume. Where an emergency exists, the Code Official shall not be required to give a written notice prior to stopping the work. Any person who shall continue any work in or about the structure after having been served with a stop work order, except such work as the person is directed to perform to remove a violation or unsafe condition, shall be guilty of an ordinance violation punishable by a fine of not more than five hundred dollars ($500.00)."

301.2 Energy utilization.

Delete Section.

306.5 Equipment and appliances on roofs or elevated structures.

Change to read as follows: "Where equipment requiring access or appliances are located on an elevated structure or the roof of a building such that personnel will have to climb higher than ten (10) feet (3,048 mm) above grade to access such equipment or appliances, an interior or exterior means of access shall be provided."

Delete exception.

401.2 Ventilation required.

Delete the following sentence: "Dwelling units complying with the air leakage requirements of the International Energy Conservation Code or ASHRAE 90.1 shall be ventilated by mechanical means in accordance with Section 403."

502.16.2 Exhaust ventilation system.

Delete exception.

508.1 Makeup air.

Add the following sentence: "The makeup air system shall automatically shut off at the time of discharge of the fire extinguishing system."

Section 500.052 Adoption of Fuel Gas Code.

[R.O. 2012 §500.052; Ord. No. 2701 §1, 1-14-2002; Ord. No. 3597 §§1 — 2, 10-11-2010; Ord. No. 4632, 11-13-2023]

A certain document, one (1) copy of which is on file in the office of the City Engineer of the City of Union, being marked and designated as the International Fuel Gas Code, 2021 Edition, as published by the International Code Council Inc., be it hereby adopted as the Fuel Gas Code of the City of Union, Missouri, for the control of building and structures as herein provided; and each and all of the regulations, provisions, penalties, conditions and terms of said Fuel Gas Code are hereby referred to, adopted and made a part hereof, as if fully set out in this Section, with the additions, insertions, deletions and changes, if any, prescribed in Section 500.054 of this Chapter.

Section 500.054 Additions, Insertions, Deletions and Changes.

[R.O. 2012 §500.054; Ord. No. 2701 §2, 1-14-2002; Ord. No. 3597 §§1 — 2, 10-11-2010; Ord. No. 4632, 11-13-2023]

The following Sections of the International Fuel Gas Code, 2021 Edition, are hereby revised as follows:

[A] 101.1 Title.

Replace "[NAME OF JURISDICTION]" with "the City of Union, Missouri."

[A] 103.1 Creation of agency.

Replace "[INSERT NAME OF DEPARTMENT]" with "Building Department."

[A] 106.3 Expiration.

Replace all instances of "one hundred eighty (180) days" with "three hundred sixty-five (365) days."

[A] 106.5.4 Extensions.

Delete Section.

[A] 113.1 General.

Replace "Board of Appeals" with "Board of Adjustment."

[A] 113.3 Qualifications.

Change to read as follows: "The Board of Appeals shall comprise the Board of Adjustment as specified in Sections 400.050 through 400.130 of the City of Union Code of Ordinances."

114 Board of Appeals.

Delete Section.

[A] 115.4 Violation; penalties.

[A] 116.1 Authority.

301.2 Energy utilization.

Delete Section.

401.5 Identification.

Change to read as follows: "Exposed piping shall be identified by a yellow label marked "Gas." The marking shall be spaced at intervals not exceeding five (5) feet (1,524 mm)."

404.17.3 Tracer.

Replace "18 AWG" with "12 AWG."

409.5.3 Located at manifold.

Delete Section.

603 Log lighters.

Delete Section.

Section 500.055 Adoption of Existing Building Code.

[Ord. No. 4631, 11-13-2023]

A certain document, one (1) copy of which is on file in the office of the City Engineer of the City of Union, being marked and designated as the International Existing Building Code, 2021 Edition, as published by the International Code Council Inc., be it hereby adopted as the Existing Building Code of the City of Union, Missouri, for the control of building and structures as herein provided; and each and all of the regulations, provisions, penalties, conditions and terms of said Existing Building Code are hereby referred to, adopted and made a part hereof, as if fully set out in this Section, with the additions, insertions, deletions and changes, if any, prescribed in Subsection (C) of this Section.

Additions, Insertions, Deletions And Changes. The following Sections of the International Existing Building Code, 2021 Edition, are hereby revised as follows:

[A] 101.1 Title.

Replace "[NAME OF JURISDICTION]" with "the City of Union, Missouri."

[A] 103.1 Creation of agency.

Replace "[INSERT NAME OF DEPARTMENT]" with "City of Union, Missouri Building Department."

[A] 105.5 Expiration.

Replace all instances of "one hundred eighty (180) days" with "three hundred sixty-five (365) days."

[A] 112.1 General.

Replace "Board of Appeals" with "Board of Adjustment."

[A] 112.3 Qualifications.

Change to read as follows: "The Board of Appeals shall comprise the Board of Adjustment as specified in Sections 400.050 through 400.130 of the City of Union Code of Ordinances."

[A] 113.4 Violation; penalties.

[A] 114.1 Authority.

[A] 117.1 General.

Delete the following phrase: "or where there has been a cessation of normal construction of any structure for a period of more than two (2) years, to demolish and remove such structure."

809 Energy conservation.

Delete Section.

907 Energy conservation.

Delete Section.

1009.1 Increased demand.

Delete exception.

Appendices A through D.

Delete Appendices.

Section 500.060 Adoption of International Residential Code.

[R.O. 2012 §500.060; Ord. No. 2705 §2, 1-14-2002; Ord. No. 3599 §§1 — 2, 10-11-2010; Ord. No. 4636, 11-13-2023]

A certain document, one (1) copy of which is on file in the office of the City Engineer of the City of Union, being marked and designated as the International Residential Code, 2021 Edition, as published by the International Code Council Inc., be it hereby adopted as the Residential Code of the City of Union, Missouri, for the control of building and structures as herein provided; and each and all of the regulations, provisions, penalties, conditions and terms of said Residential Code are hereby referred to, adopted and made a part hereof, as if fully set out in this Section, with the additions, insertions, deletions and changes, if any, prescribed in Section 500.065 of this Chapter.

Section 500.065 Additions, Insertions, Deletions and Changes.

[R.O. 2012 §500.065; CC 1992 §5-3.2; Ord. No. 1941 §5, 6-11-1990; Ord. No. 2133 §5, 1-10-1994; Ord. No. 2403 §3, 11-10-1997; Ord. No. 2705 §2, 1-14-2002; Ord. No. 3599 §1 — 2, 10-11-2010; Ord. No. 4636, 11-13-2023]

The following Sections of the International Residential Code, 2021 Edition, are hereby revised as follows:

R101.1 Title.

Replace "[NAME OF JURISDICTION]" with "the City of Union, Missouri."

R105.2 Work exempt from permit.

Delete numbers 1, 2 and 10.

R105.5 Expiration.

Replace all instances of "one hundred eighty (180) days" with "three hundred sixty-five (365) days."

R112.1 General.

Replace "Board of Appeals" with "Board of Adjustment."

R112.3 Qualifications.

Change to read as follows: "The Board of Appeals shall comprise the Board of Adjustment as specified in Sections 400.050 through 400.130 of the City of Union Code of Ordinances."

R114.1 Authority.

R202 Definitions.

Add the following:

Balcony, exterior. An exterior floor projecting from and supported by a structure without additional independent supports.

Deck. An exterior floor system supported on at least two (2) opposing sides by adjoining structure and/or posts, piers or other independent supports.

Table 301.2 Climatic and Geographic Design Criteria.

Ground Snow Load	Wind Design			Subject to Damage From			Winter Design Temp	Ice Barrier Underlay-ment Required	Flood Hazards *	Air Freezing Index	Mean Annual Temperature
Ground Snow Load	Speed (mph)	Topographic Effects	Seismic Design Category	Weathering	Frost Line Depth	Termite	Winter Design Temp	Ice Barrier Underlay-ment Required	Flood Hazards *	Air Freezing Index	Mean Annual Temperature
20 psf	115 (3 sec. gust) 89 (fastest mile)	No	C	Severe	30 Inches	Moderate to Heavy	0 to 10 CF	No	10-9-2002 (Ordinance #2607)	767	55.3 CF

*	current firm: panel 290137005B & 2904930160B

Table R302.6 Dwelling-garage separation.

Delete all instances of "one-half (1/2) inch gypsum board" and replace with "five-eighths (5/8) inch gypsum board."

R302.11 Fireblocking.

Add the following as number 7:

7. Horizontal fireblocking is required in common walls separating living space and garage at vertical height midpoint.

R302.13 Fire protection of floors.

Delete Section.

R303.3 Bathrooms.

Add the following sentence: "Outdoors is considered as ridge vent, gable vent and soffit vent."

R309.2 Carports.

Delete the exception.

R311.3.2 Floor elevations at other exterior doors.

Change exception to read as follows: "A top landing is not required where a stairway of three (3) or fewer risers is located on the exterior side of the door, provided that the door does not swing over the stairway."

15.

R311.7.7 Stairway walking surface.

Delete the exception.

16.

R311.7.8 Handrails.

Replace "four (4) or more risers" with "three (3) or more risers."

17.

R312.1.1 Where required.

Add the following sentence: Spindles shall be positioned vertically.

18.

R312.1.3 Opening limitations.

Delete exception number 2.

19.

R312.2 Window fall protection.

Delete Section.

20.

R313.2 One- and two-family dwellings automatic sprinkler systems.

Delete Section.

21.

R318.2 Chemical termiticide treatment.

Add the following sentence: "Treatment of soils with chemicals shall be performed by a State-certified applicator."

22.

R402.1 Wood foundations.

Delete Section.

23.

R402.2 Cold and hot weather concreting (added Section).

Cold Weather Concreting.

Reference AC1 306 (Cold Weather Concreting).

ACI 318 leads to ACI 308R.

ACI 308R references ACI 305R for hot weather curing.

ACI 308R - general guidance for hot weather concrete.

Hot Weather Concreting.

Reference ACI 305 (Hot Weather Concreting).

ACI 318 leads to ACI 308R.

ACI 308R references ACI 306R for cold weather curing.

ACI 308R - general guidance for cold and hot weather concrete.

24.

R403.1 General.

Delete "wood foundations."

25.

Table R403.1(1).

Delete Table.

Add the following Table.

Minimum width and thickness for concrete or masonry footings (soil bearing 1,500 to 4,000 psf)
Number of Floors Supported by the Footing	Width of Footing (inches)	Thickness of Footing (inches)
1	24	8
2	24	8
3	24	10
Reinforcing steel: Two (2) number 4 rebar continuous, per Section R403.1.3.5

26.

Figure R403.1(2) Permanent wood foundation basement wall section.

Delete figure.

27.

Figure R403.1(3) Permanent wood foundation crawl space section.

Delete figure.

28.

R403.1.4.1 Frost protection.

Exception 1 - Replace "six hundred (600) square feet" with "two hundred (200) square feet."

Delete exception 2.

29.

R403.2 Footings for wood foundations.

Delete Section.

30.

R403.3.1 Foundations adjoining frost-protected shallow foundations.

Delete Section.

31.

Figure R403.4(1) Basement or crawl space with precast foundation wall bearing on crushed stone.

Delete figure.

32.

Table R403.4 Minimum Depth (D) and Width (W) of crushed stone footings.

Delete Table.

33.

R403.4.1 Crushed stone footings.

Delete Section.

34.

Table R404.1.1(1).

Delete the following Tables:

Table R404.1.1(1), R404.1.1(2), R404.1.1(3), R404.1.1(4), R404.1.2(1), R404.1.2(2), R404.1.2(3), R404.1.2(4), R404.1.2(5), R404.1.2(6), R404.1.2(7), R404.1.2(8), R404.1.2(9).

Add the following Table:

Reinforced Concrete Foundation Walls — 8-inch Thickness
Wall height (feet)	Steel reinforcement^b grade 40 (minimum), diameter 1/2" (no. 4)
Wall height (feet)	Minimum Vertical Spacing (inches)	Minimum Horizontal Spacing (inches)
< 4	48	24
4 to < 10	24	24
> = 10	DESIGN REQUIRED

35.

R404.1.3.2 Reinforcement for foundation walls.

Delete Section.

36.

R405.2 Wood foundations.

Delete Section.

37.

R406.3 Damp-proofing for wood foundations.

Delete Section.

38.

R408.4 Access.

Replace all references of openings "sixteen (16) inches by twenty-four (24) inches" with "eighteen (18) inches by twenty-four (24) inches."

39.

R408.8 Under-floor vapor retarder.

Delete exception.

40.

Table R503.2.1.1(1) Allowable spans and loads for wood structural panels for roof and subfloor sheathing and combination subfloor underlayment.

Replace all instances of "Minimum Nominal Panel Thickness — Sheathing, three-eighths (3/8) inch" with "Minimum Nominal Panel Thickness — Sheathing, seven-sixteenths (7/16) inch."

Replace all instances of "Minimum Nominal Panel Thickness — Underlayment, C-C plugged, single floor, roof, combination subfloor underlayment, 19/32, 5/8 inch" with "Minimum Nominal Panel Thickness — Underlayment, C-C plugged, single floor, roof, combination subfloor underlayment, 23/32, 3/4 inch."

41.

R504 Pressure preservative-treated wood floors (on ground).

Delete Section.

42.

R506.2.3 Vapor retarder.

Delete exception number 2.

43.

R507.3 Footings.

Delete exceptions 1 and 2.

Add the following exception: "Deck posts for freestanding decks installed for mobile homes, with an area not exceeding fifty (50) square feet, may be supported on concrete footings extending no less than fifteen (15) inches below the undisturbed ground surface."

44.

R507.3.3 Frost protection.

Delete exception 3.

45.

R507.4.1 Deck post to deck footing connection.

Delete the following statement: "or a minimum post embedment of twelve (12) inches (305 mm) in surrounding soils or concrete piers. Other footing systems shall be permitted."

Delete exception.

46.

Figure R602.10.6.3 Method PFG — portal frame at garage door openings in seismic design categories a, b and c.

Add the following note: "A wood 2-inch by 4-inch may be substituted for the steel tension strap from the top of the double plate to the top of the foundation.

47.

R702.3.7 Water-resistant gypsum backing board.

Add the following: "Water-resistant gypsum board shall be extended at least twenty-four (24) inches past any tub or shower enclosure or area."

48.

R1005.4.1 Factory-built fireplaces.

Add the following: "The flue chase for factory-built fireplaces shall have one (1) layer of 5/8-inch, Type X gypsum board applied to the inside of the chase, terminating vertically at the roof sheathing. Gypsum board joints shall be fire taped or fire caulked."

49.

Chapter 11 Energy efficiency.

Delete Chapter.

50.

M1401.4.1 Height requirement (new).

Add the following: "Equipment installed outdoors shall be installed with a maximum height of three (3) feet from finish grade."

51.

M1502.4.1.1 Duct material (new).

Add the following: "All single-wall ventilation ducts serving toilet rooms and bathrooms shall be constructed of an approved rigid or flexible metal material. Vinyl duct is not allowed.

52.

M1601.2 Vibration isolators.

Add the following: "Metal duct work shall be bonded together."

53.

G2412.5 Identification.

Change to read as follows: "Exposed piping shall be identified by a yellow label marked "Gas." The marking shall be spaced at intervals not exceeding five (5) feet (1,524 mm).

54.

G2414.3.2 Steel.

Replace "Schedule 10" with "Schedule 40."

55.

G2420.5.3 Located at manifold.

Delete Section.

56.

P2503.7 Water-supply system testing.

Replace "fifty (50) psi" with "eighty (80) psi."

57.

P2902.5.3 Lawn irrigation systems.

Change to read as follows: "The potable water supply to lawn irrigation systems shall be protected against backflow by a reduced pressure principle backflow preventer. Where chemicals are introduce into the system, the potable water supply shall be protected against backflow by a reduce pressure principle backflow preventer."

58.

P2904 Dwelling unit fire sprinkler systems.

Delete Section.

59.

P2906.4 Water service pipe.

Delete Section.

60.

Table P2906.4 Water service pipe.

Delete the following materials:

Acrylonitrile butadiene styrene (ABS) plastic pipe.

Chlorinated polyvinyl chloride (CPVC) plastic pipe.

Chlorinated polyvinyl chloride/aluminum/chlorinated polyvinyl chloride (CPVC/AL/CPVC) plastic pipe.

Cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX) pipe.

Cross-linked polyethylene/aluminum/high-density polyethylene (PEX-AL-HDPE) pipe.

Cross-linked polyethylene (PEX) plastic tubing.

Polyethylene/aluminum/polyethylene (PE-AL-PE) pipe.

(8)

Polyethylene of raised temperature (PE-RT) plastic tubing.

Add the following material:

3/4-inch CTS SDR-9 tubing 250 psi (ASTM D2737).

61.

Table 2906.5 Water distribution pipe.

Delete the following materials:

Chlorinated polyvinyl chloride/aluminum/chlorinated polyvinyl chloride (CPVC/AL/CPVC) plastic pipe.

Cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX) pipe.

Cross-linked polyethylene/aluminum/high-density polyethylene (PEX-AL-HDPE) pipe.

Polyethylene/aluminum/polyethylene (PE-AL-PE) composite pipe.

Polyethylene of raised temperature (PE-RT) plastic tubing.

Polypropylene (PP) plastic pipe or tubing.

62.

Table 2906.6 Pipe fittings.

Delete the following materials:

Acrylonitrile butadiene styrene (ABS) plastic.

Cross-linked polyethylene/aluminum/high-density polyethylene (PEX-AL-HDPE).

Insert fittings for polyethylene/aluminum/polyethylene (PE-AL-PE) and cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX).

Fittings for polyethylene of raised temperature (PE-RT) plastic tubing.

Polypropylene (PP) plastic pipe or tubing.

Polyvinyl chloride (PVC) plastic.

Steel.

63.

Table 3002.1(1) Above-ground drainage and vent pipe.

Delete the following materials:

Acrylonitrile butadiene styrene (ABS) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a solid, cellular core or composite wall.

Polyolefin pipe.

Polyvinyl chloride (PVC) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a cellular core or composite wall.

Polyvinyl chloride (PVC) plastic pipe with a 3.25-inch O.D. and a cellular core or composite wall.

64.

Table 3002.1(2) Underground building drainage and vent pipe.

Delete the following materials:

Acrylonitrile butadiene styrene (ABS) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a solid, cellular core or composite wall.

Polyolefin pipe.

Polyvinyl chloride (PVC) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a cellular core or composite wall.

Polyvinyl chloride (PVC) plastic pipe with a 3.25-inch O.D. and a cellular core or composite wall.

65.

Table 3002.2 Building sewer pipe.

Delete the following materials:

Acrylonitrile butadiene styrene (ABS) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a solid, cellular core or composite wall.

Acrylonitrile butadiene styrene (ABS) plastic pipe in sewer and drain diameters, including SDR 42 (PS 20), PS 35, SDR 35 (PS 45), PS 50, PS 100, PS 140, SDR 23.5 (PS 150) and PS 200; with a solid, cellular core or composite wall.

Polyvinyl chloride (PVC) plastic pipe in sewer and drain diameters, including PS 25, SDR 41 (PS 28), PS 35, SDR 35 (PS 46), PS 50, PS 100, SDR 26 (PS 115), PS 140 and PS 200; cellular core or composite wall.

Polyethylene (PE) plastic pipe (SDR-PR).

Polyolefin pipe.

Polyvinyl chloride (PVC) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); cellular core or composite wall.

Polyvinyl chloride (PVC) plastic pipe with a 3.25-inch O.D. cellular core or composite wall.

(8)

Vitrified clay pipe.

66.

Table 3002.2 Pipe fittings.

Delete the following materials:

Acrylonitrile butadiene styrene (ABS) plastic pipe in IPS diameters.

Acrylonotrile butadiene styrene (ABS) plastic pipe in sewer and drain diameters.

Polyolefin.

Vitrified clay.

67.

P3005.4.1 Branch and stack sizing.

Delete "one and one-half (1-1/2) inches" and replace with "two (2) inches."

68.

P3102.1 Required vent extension.

Add the following statement: "The minimum size of the vent stack or stank vent shall be three (3) inches in diameter and shall run undiminished in size and as directly as possible from the building drainage system through to the open air above the roof. All other vents shall not be less than two (2) inches in diameter."

69.

P3103.1.1 Roof extension.

Change to read as follows: "Open vent pipes that extend through a roof that do not meet the conditions of Section P3103.1.2 or P3103.1.3 shall terminate not less than twelve (12) inches (150 mm) above the roof or six (6) inches (150 mm) above the anticipated snow accumulation, whichever is greater."

70.

P3114.1 General.

Add the following sentence: "Where approved by the Building Official."

71.

P3303.1.5 Discharge piping location (new Section).

Add the following: "Sump pump piping shall discharge to the exterior of the building only and no closer than ten (10) feet from the property line. There shall be no direct discharge of sump pumps to the sanitary and storm sewer systems."

72.

Chapters 34 through 41.

Delete Chapters.

Replace with 2020 Edition of NFPA 70, National Electrical Code (NEC).

73.

Chapter 42 Swimming pools.

Delete Chapter.

74.

Chapter 43 Class 2 remote-control, signaling and power-limited circuits.

Delete Chapter.

75.

Appendices AA through AX.

The provisions contained in the appendices are not mandatory unless specifically referenced in the adopting ordinances.

Section 500.070 Adoption of Property Maintenance Code.

[R.O. 2012 §500.070; CC 1992 §5-5; Ord. No. 1723 §3, 5-12-1986; Ord. No. 1941 §3, 6-11-1990; Ord. No. 2133 §3, 1-10-1994; Ord. No. 2403 §6, 11-10-1997; Ord. No. 4635, 11-13-2023]

A certain document, one (1) copy of which is on file in the office of the City Engineer of the City of Union, being marked and designated as the International Property Maintenance Code, 2021 Edition, as published by the International Code Council Inc., be it hereby adopted as the Property Maintenance Code of the City of Union, Missouri, for the control of building and structures as herein provided; and each and all of the regulations, provisions, penalties, conditions and terms of said Property Maintenance Code are hereby referred to, adopted and made a part hereof, as if fully set out in this Section, with the additions, insertions, deletions and changes, if any, prescribed in Subsection (C) of this Section.

Additions, Insertions, Deletions And Changes. The following Sections of the International Property Maintenance Code, 2021 Edition, are hereby revised as follows:

[A] 101.1 Title.

Replace "[NAME OF JURISDICTION]" with "the City of Union, Missouri."

[A] 104.2 Refunds.

Delete Section.

[A] 103.1 Creation of agency.

Replace "[INSERT NAME OF DEPARTMENT]" with "Building Department."

107.1 General.

Replace "Board of Appeals" with "Board of Adjustment."

107.3 Qualifications.

Change to read as follows: "The Board of Appeals shall comprise the Board of Adjustment as specified in Sections 400.050 through 400.130 of the City of Union Code of Ordinances."

108 Board of Appeals.

Delete Section.

302.4 Weeds.

Replace "[JURISDICTION TO INSERT HEIGHT IN INCHES]" with "ten (10) inches."

307.1 Handrails and guardrails.

Replace "four (4) risers" with "three (3) or more risers."

304.14 Insect screens.

Replace "[DATE] to [DATE]" with "January 1 to December 31."

307.1 General.

Replace the phrase "four (4) risers" with "three (3) risers."

[P] 505.5 Non-potable water reuse systems.

Delete Section.

602.3 Heat supply.

Replace "[DATE] to [DATE]" with "January 1 to December 31."

602.4 Occupiable work spaces.

Replace "[DATE] to [DATE]" with "January 1 to December 31."